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Quasi-steady-state air waveguide
preprintposted on 2023-02-09, 17:02 authored by A. Goffin, A. Tartaro, H. M. Milchberg
We report the first generation of quasi-steady-state air waveguides capable of guiding high average power laser beams. The guides are produced by high-repetition rate patterned filamentation of femtosecond laser pulses. We demonstrate near-continuous guiding of a CW probe beam with significantly higher efficiency than transient guides at lower repetition rates.